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4 amino pyrimidinenotonlyhasimportantbio logicalactivity[1 ] ,butalsoistheintermediateforsomemedicines .Itcanbepreparedbycyclotrimer i
4 amino pyrimidinenotonlyhasimportantbio logicalactivity [1], butalsoistheintermediateforsomemedicines. Itcanbepreparedbycyclotrimer i